CN114738113B - Diesel power driven PSA oxygen production equipment and oxygen production method - Google Patents

Diesel power driven PSA oxygen production equipment and oxygen production method Download PDF

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Publication number
CN114738113B
CN114738113B CN202210358222.5A CN202210358222A CN114738113B CN 114738113 B CN114738113 B CN 114738113B CN 202210358222 A CN202210358222 A CN 202210358222A CN 114738113 B CN114738113 B CN 114738113B
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oxygen
air
compressed air
input end
clutch
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CN114738113A (en
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马军
王懿男
田涛
石梅生
张彦军
宋振兴
陈建新
刘红斌
刘培朋
孙鸿运
马帅
张琼
温博伦
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Institute of Medical Support Technology of Academy of System Engineering of Academy of Military Science
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Institute of Medical Support Technology of Academy of System Engineering of Academy of Military Science
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
    • F02B63/06—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for pumps
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/10—Preparation of respiratory gases or vapours
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
    • B01D53/047—Pressure swing adsorption
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
    • C01B13/02—Preparation of oxygen
    • C01B13/0229—Purification or separation processes
    • C01B13/0248—Physical processing only
    • C01B13/0259—Physical processing only by adsorption on solids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
    • F02B63/04—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for electric generators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/16—Filtration; Moisture separation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B41/00—Pumping installations or systems specially adapted for elastic fluids
    • F04B41/02—Pumping installations or systems specially adapted for elastic fluids having reservoirs
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/14—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle
    • H02J7/1415—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle with a generator driven by a prime mover other than the motor of a vehicle
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Organic Chemistry (AREA)
  • Analytical Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Pulmonology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Anesthesiology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Biomedical Technology (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Power Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Emergency Medicine (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Oxygen, Ozone, And Oxides In General (AREA)

Abstract

The invention discloses a diesel power driven PSA oxygen generating device and an oxygen generating method, wherein the oxygen generating device comprises a diesel engine, a transmission system, an air compressor system, a compressed air processing system, an oxygen generating system, an oxygen supercharging system and a diesel engine self-generating system; the diesel engine provides compression power for the air compressor system and the oxygen supercharging system through the transmission system; the air compressor system compresses air, the compressed air treatment system cleans the compressed air, the oxygen generation system generates oxygen, the oxygen pressurization system compresses oxygen, and the diesel engine provides power from the power generation system; the diesel power-driven PSA oxygen generating equipment designed by the invention adopts diesel power for direct driving in air compression and oxygen compression, does not use a motor, reduces intermediate links, improves the energy utilization rate, reduces the failure rate, realizes the integrated integration of the PSA oxygen generating equipment, has smaller volume and lighter mass, can effectively improve the oxygen generating guarantee capability on a mobile bearing platform with limited space, and has stronger self-guarantee capability.

Description

Diesel power driven PSA oxygen production equipment and oxygen production method
Technical Field
The invention belongs to the field of oxygen production equipment, and particularly relates to diesel power driven PSA oxygen production equipment and an oxygen production method.
Background
At present, when the PSA medical oxygen production equipment works in a field environment, a generator set is generally used for supplying power, and an energy conversion mode is 'kinetic energy-electric energy-kinetic energy', and energy loss exists in each conversion. The plateau air is thin and high and cold, the conversion efficiency is lower, the energy loss is larger, the power supply quality of the generator set is poorer, and the failure rate of an electrical system is higher no matter the generator set is power generation equipment or electric equipment.
Disclosure of Invention
The invention provides a diesel power driven PSA oxygen generating device, comprising:
the system comprises a diesel engine, a transmission system, an air compressor system, a compressed air treatment system, an oxygen generation system, an oxygen supercharging system and a diesel engine self-generating system;
The output shaft of the diesel engine is connected with the input end of a transmission system, and the transmission system is used for distributing the power of the diesel engine and transmitting the power;
the first output end of the transmission system is connected with the power input end of an air compressor system, and the air compressor system is used for producing compressed air; the air compressor system compresses air without using electric energy;
the output end of the air compressor system is connected with the input end of the compressed air treatment system through an air passage, and the compressed air treatment system is used for filtering compressed air and storing the filtered compressed air as filtered compressed air;
The output end of the compressed air treatment system is connected with the input end of the oxygen generation system through an air passage, and the oxygen generation system is used for producing oxygen by using the filtered compressed air and storing the oxygen as low-pressure oxygen;
the second output end of the transmission system is connected with the power input end of the oxygen pressurization system, the output end of the oxygen generation system is connected with the gas input end of the oxygen pressurization system through an air passage, the oxygen pressurization system is used for compressing low-pressure oxygen into high-pressure oxygen and storing the high-pressure oxygen, and the oxygen pressurization system compresses the oxygen without using electric energy;
The diesel engine is used for providing power from a power generation system.
Further, the diesel-powered PSA oxygen plant also comprises a cooling system, and the cooling system is used for cooling the diesel-powered PSA oxygen plant.
Further, the transmission system comprises a transfer case, a clutch system and a speed reducer; the clutch system includes a clutch;
An output shaft of the diesel engine is connected with an input end of the transfer case;
The transfer case first output end is connected with the power input end of the air compressor system through a coupler;
The transfer case second output end is connected with the clutch input end, the clutch output end is connected with the speed reducer input end through a belt, and the speed reducer output end is connected with the oxygen pressurization system power input end through a belt.
Further, the air compressor system comprises an air filter, a screw air compressor, an oil-gas separator and an air cooler;
the first output end of the transfer case is connected with the power input end of the screw air compressor through a coupler;
The air filter is provided with an air inlet, the output end of the air filter is connected with the gas input end of the screw air compressor through an air passage, the output end of the screw air compressor is connected with the input end of the oil-gas barrel through the air passage, the output end of the oil-gas barrel is connected with the input end of the oil-gas separator, and the gas output end of the oil-gas separator is cooled by the air cooler and outputs cooled compressed air.
Further, the compressed air treatment system comprises a water removal filter, a first air storage tank, an oil removal filter, a athermal regeneration adsorption dryer, a dust filter, a sterilization filter and a second air storage tank;
compressed air after the cooling is input through the air flue the dewatering filter input, the dewatering filter output passes through the air flue and connects first gas holder input, first gas holder output passes through the air flue and connects deoiling filter input, deoiling filter output passes through the air flue and connects athermal regeneration adsorption dryer input, athermal regeneration adsorption dryer output passes through the air flue and connects dust filter input, dust filter output passes through the air flue and connects the degerming filter input, degerming filter output passes through the air flue and connects second gas holder input, and the second gas holder stores for the compressed air after the filtration.
Further, the oxygen generating system comprises a PSA oxygenerator and an oxygen storage tank;
The filtered compressed air is input into the input end of the PSA oxygenerator through an air passage, and the output end of the PSA oxygenerator is connected with the input end of the oxygen storage tank through the air passage; the oxygen storage tank stores low-pressure oxygen.
Further, the oxygen pressurization system comprises an oxygen compressor and a compressed oxygen storage tank;
the low-pressure oxygen is input into the input end of the oxygen compressor through an air passage, and the output end of the oxygen compressor is connected with the input end of the compressed oxygen storage tank through the air passage;
The second output end of the transfer case is connected with the input end of the clutch, the output end of the clutch is connected with the input end of the speed reducer through a belt, and the output end of the speed reducer is connected with the power input end of the oxygen compressor through a belt;
The clutch shell is provided with a clutch air hole;
The clutch system further comprises a clutch air storage tank for controlling the clutch;
The output end of the compressed air treatment system is connected with the input end of the clutch air storage tank in a one-way through an air passage;
The output end of the clutch air storage tank is connected with a clutch air hole through an air passage;
And a clutch electromagnetic valve is also arranged on the air passage between the clutch air storage tank and the clutch air hole.
Further, the diesel engine self-power generation system is a diesel engine self-contained direct current generator.
Further, the diesel engine self-power generation system further comprises a generator;
The third output end of the transmission system is connected with the input end of the generator.
The invention also provides a diesel power-driven PSA oxygen production method, which comprises the following steps:
1) The diesel engine drives an air compressor system to extract air from the external environment through a transmission system for filtering and compressing to obtain compressed air, and the compressed air is input into a compressed air treatment system;
2) The compressed air treatment system receives the compressed air, filters the compressed air and stores the filtered compressed air;
3) The oxygen generation system carries out nitrogen adsorption on the filtered compressed air to obtain low-pressure oxygen and stores the low-pressure oxygen;
4) The diesel engine drives the oxygen pressurization system to compress low-pressure oxygen through the transmission system, compresses the low-pressure oxygen into high-pressure oxygen and stores or fills the high-pressure oxygen.
According to the diesel power-driven PSA oxygen generating equipment and the oxygen generating method, the air compressor system and the oxygen pressurizing system are directly driven by mechanical energy generated by the operation of the diesel engine, and the control system and the air path system of the PSA oxygen generating equipment are ensured to operate by using the self-powered bottle of the diesel engine, so that the air pressure and the oxygen pressure system with the maximum electricity consumption (which account for more than 95% of the total electricity consumption of the whole set of oxygen generating equipment) can be completely ensured by self energy sources without depending on an external power supply; meanwhile, the energy conversion loss of 'kinetic energy, electric energy and kinetic energy' is eliminated, the energy is utilized to the maximum extent, and the energy consumption is effectively reduced; the requirements on power supply guarantee conditions are reduced, and particularly, the highland field environment is realized. On the other hand, the diesel power directly drives the PSA oxygen production technology, reduces the intermediate mechanism in the energy conversion process, ensures that the PSA oxygen production equipment has simpler structure and lower fault rate, and can realize the high integration and multifunctional integration of the equipment structure, thereby installing equipment with larger oxygen production amount on a mobile platform with limited bearing space, such as a novel highland mobile oxygen production equipment integrating oxygen production, oxygen compression, oxygen supply and other functions and adopting a heavy high-mobility cross-country chassis to realize oxygen production of 10m 3/h or more.
Drawings
Fig. 1 shows a schematic diagram of the working principle of a diesel-powered PSA oxygen plant according to an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
The invention designs a diesel power driven PSA oxygen generating device, as shown in figure 1, comprising:
the system comprises a diesel engine, a transmission system, an air compressor system, a compressed air treatment system, an oxygen generation system, an oxygen supercharging system and a diesel engine self-generating system;
The diesel engine is used as a power source to provide power.
Specifically, an output shaft of the diesel engine is connected with an input end of a transmission system, and the transmission system is a power output switching device and is used for distributing power of the diesel engine and transmitting power;
the first output end of the transmission system is connected with the power input end of an air compressor system, and the air compressor system is used for producing compressed air; the air compressor system compresses air without using electric energy;
the output end of the air compressor system is connected with the input end of the compressed air treatment system through an air passage, and the compressed air treatment system is used for filtering compressed air and storing the filtered compressed air as filtered compressed air;
the output end of the compressed air treatment system is connected with the input end of the oxygen generation system through an air passage, and the oxygen generation system is used for producing oxygen from the filtered compressed air and storing the oxygen as low-pressure oxygen;
the second output end of the transmission system is connected with the power input end of the oxygen pressurization system, the output end of the oxygen generation system is connected with the gas input end of the oxygen pressurization system through an air passage, and the oxygen pressurization system is used for compressing low-pressure oxygen into high-pressure oxygen and storing the high-pressure oxygen; the oxygen boosting system compresses oxygen without using electric energy.
The diesel engine is used for providing power from a power generation system. In the application, the diesel engine self-power generation system has two forms, one is a diesel engine self-contained direct current generator, and the other is a diesel engine self-contained direct current generator and an additional generator.
In the application, a diesel engine is used for providing power from a power generation system. The power supply comprises preheating the diesel engine and preheating and supplying power to a cold start auxiliary system of the diesel engine; simultaneously, the system supplies power to an external lighting component, an electric control system, an automatic control valve, a athermal regeneration adsorption dryer, a PSA oxygenerator and an air cooler, and also comprises control for valves (electromagnetic valves) and sensors in equipment and the like; and in the oxygen production link, the main energy consumption is as follows: compression, and no electricity is used.
In the application, a PSA oxygenerator adopts six-adsorption bed PSA oxygenerator, the oxygen generation flow control adopts a multi-way rotary distribution valve for gas distribution (the related multi-way rotary distribution valve technology is referred to CN201040140Y related technology, the related six-adsorption bed PSA oxygenerator is referred to CN201040719Y, CN201040720Y, CN101049911A related technology), and the valve is driven by a cylinder. Be provided with PLC (programmable logic controller) control system on the PSA oxygenerator, oxygenerator only has PLC control system to need the electricity consumption, and the power consumption is only 0.2kW, and the power consumption is minimum. The athermal regeneration adsorption dryer uses the characteristic of adsorbing moisture of an adsorbent (activated alumina, silica gel and molecular sieve) to reduce the moisture content in compressed air, and only the control system needs electricity, so that the electricity consumption is very small. The air cooler does not use electricity, but a fan radiating the air cooler needs electricity, the power depends on the type of an air compressor, the air displacement of the air cooler is designed to be more than or equal to 3.6m 3/min, the actual measurement of the plain is 4.27m 3/min, the power of the fan is about 0.75kW, and the power consumption is extremely small.
The diesel engine is provided with a direct current generator (not shown in the figure) which is a main power supply for the operation of the diesel engine, and the diesel engine is used for supplying power to all electric equipment (except a starting motor) and simultaneously charging a storage battery when the engine is in normal operation (above idle speed).
When the diesel engine self-power generation system is a diesel engine self-provided direct current generator, the diesel engine self-provided direct current generator provides power guarantee for diesel power driven PSA oxygen generating equipment through a storage battery. However, since the diesel engine has a low power from the dc generator, the power supply may be insufficient if post maintenance is required. When the later maintenance is not considered, the application can realize oxygen production by using the power supply of the diesel engine with the direct current generator, thereby realizing more efficient energy conversion.
In the present application, as shown in fig. 1, fig. 1 shows the use of a diesel engine with its own dc generator plus an additional generator to provide power support for a diesel powered PSA oxygen plant. The third output end of the transmission system is connected with the input end of the generator. The transmission system drives the generator to generate electricity, and kinetic energy is used for converting the electricity into electric energy. In the present application, the transmission system includes a transfer case. The transfer case used in the application is required to be at least capable of achieving one-third. Transfer cases such as CN202251711U related designs. An output shaft of the diesel engine is connected with an input end of the transfer case, and a third output end of the transfer case drives an input end of the generator through a belt, so that the generator can produce electric power. The application uses a 5kW generator. The purpose of using the 5kW generator is to be possible to be used for detecting instrument equipment, output standby and the like in the future. Preferably, the generator is provided with monitoring and display functions such as voltage, current, power and the like, and also with protection functions such as overvoltage, overcurrent, overload, phase sequence and the like.
The application uses a 'one-to-three' independent operation drive mode: the elastic coupling force taking mode and the direct driving mode of the oxygen pressurization system of the air compressor system are respectively and independently operated, and the start and stop and the load change of each system are not influenced.
The diesel power driven PSA oxygen generating equipment is internally provided with an electric control system (controller), a pressure control module, an air temperature control module, a current-voltage analog signal module and the like. The electrical control system (controller) may be a circuit board, a CPU, a chip, or the like, or may be software provided thereon. The electric control system is used for controlling the pressure control module, the air temperature control module, the current-voltage analog signal module and the like, and is also used for controlling each electromagnetic valve and the like. The electrical control system is also used to control operating software on the components or an operating system, such as software on the generator for monitoring or display. The electrical control system (controller) is electrically or communicatively connected to each module, solenoid valve, operating system or operating software circuit. The pressure control module comprises a pressure sensor; the temperature control module comprises a temperature sensor, and the current-voltage analog signal module comprises a current-voltage converter and an analog-to-digital converter, and is used for converting analog signals of the current and the voltage into digital signals. Illustratively, the air compressor system is provided with a pressure control module for detecting a relative pressure of the compressed air, i.e., a difference between the compressed air and the atmospheric pressure, i.e., a gauge pressure. The air temperature control module is used for mainly monitoring and displaying the temperature of the head of the diesel engine, the temperature of the head of the air compressor, the temperature of compressed gas at the outlet of the air compressor and the like; the oxygen generator needs to detect the air inlet pressure, the adsorption pressure and the like of the adsorption tower, and in order to reduce the influence of power supply voltage fluctuation on the adsorption tower, the output signals of the sensors are current signals. Converted into a digital signal by an analog-to-digital conversion module and then sent to a controller for processing. The generator output line also comprises current (analog quantity) and voltage (analog quantity), the current and voltage analog signal acquisition module acquires the signals, converts the signals into digital signals, sends the digital signals to the controller for processing, and then displays the output current value and voltage value on the display window.
The diesel power driven PSA oxygen generating equipment is internally provided with a chassis assembly, and the chassis assembly is used for installing all systems in the diesel power driven PSA oxygen generating equipment.
The diesel power driven PSA oxygen generating equipment further comprises a cooling system, and the cooling system is used for cooling the diesel power driven PSA oxygen generating equipment. The cooling system comprises an air cooler, an oil-gas cooler and a athermal regeneration adsorption dryer.
Through a large number of severe environment tests such as high altitude, high heat, high humidity, extremely cold and the like, the application needs to cope with various extreme working condition environments. Preferably, the application uses Dongfeng Kangming QSB3.9 series engine, such as the model QSB3.9-C130 diesel engine, has good power expansion performance. The diesel engine has the functions of speed monitoring and display.
The diesel power driven PSA oxygen generating equipment also comprises a diesel engine cold start auxiliary system;
The water outlet end of the transmission system of the diesel engine cold start auxiliary system is connected with the water return end of the diesel engine water tank through a pipeline, and the water inlet end of the diesel engine cold start auxiliary system is connected with the water outlet end of the diesel engine water tank through a pipeline.
The cold start auxiliary system of the diesel engine has various designs, such as YJH-Q10A liquid fuel heater, the liquid fuel heater is a type of heating engine cooling liquid by adopting a combustion heat exchange mode, the purpose of preheating a water-cooled engine is achieved, the oil consumption is small, the heat efficiency is high, the heating speed is high, the effect is stable, and the exhaust emission is extremely low. The engine can be greatly reduced in difficulty in cold start in winter, the abrasion and oil consumption of the engine are reduced, and the service life of the engine is prolonged. The fuel oil liquid heater is powered by a storage battery or a direct current power supply, and uses diesel oil or kerosene as fuel, and can normally work at-40 ℃ so as to facilitate the normal start of the engine in the environment.
The diesel power driven PSA oxygen plant also comprises a fuel oil water heater.
The fuel oil water-cold appliance is connected in series in a diesel oil inlet pipeline of the diesel engine, and diesel oil passes through the diesel oil water-cold appliance inlet and the fuel oil water-cold appliance outlet to be subjected to diesel oil inlet of the diesel engine. The fuel oil water-cooling device has the functions of filtering diesel oil, electrically pumping oil, heating and removing wax and water.
Specifically, the transmission system comprises a transfer case, a clutch and a speed reducer;
An output shaft of the diesel engine is connected with an input end of the transfer case;
a transfer case is a device that distributes power of an engine. In the application, the transfer case can be divided into more than three.
The transfer case first output end is connected with the power input end of the air compressor system through a coupler;
the air compressor system comprises an air filter, a screw air compressor, an oil-gas barrel, an oil-gas separator and an oil-gas cooler; the oil and gas cooler includes an oil cooler and a gas cooler.
The first output end of the transfer case is connected with the power input end of the screw air compressor through a coupler;
The air filter is used for filtering air, filtering dust with larger particle size and the like, and is provided with an air inlet, the output end of the air filter is connected with the gas input end of the screw air compressor through an air passage, the output end of the screw air compressor outputs mixed gas, the mixed gas sequentially enters the oil-gas barrel and the oil-gas separator through the air passage, the gas output end of the oil-gas separator is cooled by using an air cooler, and cooled compressed air is output.
In the present application, a twin screw compressor is used for the screw air compressor. The cooler is actually a radiator, adopts a coil pipe, a finned pipe and other structures with very high heat transfer coefficients, is used for conducting heat of air compressor oil or compressed gas flowing through the cooler to the outer surface of the cooler, and radiates heat under the blowing of wind power of a fan, and is divided into an oil cooler and an air cooler due to different functions although the structures are different.
The screw air compressor is internally provided with an oil-gas barrel containing air compressor oil and a very small amount of gas, sometimes also referred to simply as an oil barrel. The air compressor oil is used for cooling and lubricating, and is also called cooling liquid or lubricating oil. In the running process, the screw head rotates to generate negative pressure, and cooling liquid is sucked into the screw head through the oil-gas cooler and the oil filter. The cooling liquid has lubricating effect on the screw head. Simultaneously, the screw head rotates to generate compressed gas, and the compressed gas is a high-temperature gas mixture and comprises compressed air and air compressor oil. The compressed gas is cooled by an oil-gas barrel and then is separated from oil and gas by an oil-gas separator. And cooling the separated compressed gas by a gas cooler, outputting the cooled compressed gas. The separated oil is returned to the oil and gas tank. The oil-gas barrel is filled with cooling liquid to play a role in cooling. The oil cooler cools a coolant (air-compressor oil) passing through the oil cooler.
Specifically, the output end of the air compressor system is connected with the input end of the compressed air treatment system through an air passage, and the compressed air treatment system is used for filtering compressed air and storing the filtered compressed air as filtered compressed air;
The compressed air treatment system comprises a water removal filter, a first air storage tank, an oil removal filter, a athermal regeneration adsorption dryer, a dust filter, a sterilization filter and a second air storage tank;
The compressed air after cooling is input through the air flue the dewatering filter input, the dewatering filter is used for separating gas and liquid, improves compressed air's degree of dryness. There are various designs of water removal filters, such as gas-water separators.
The output end of the water removal filter is connected with the input end of the first air storage tank through an air passage, the output end of the first air storage tank is connected with the input end of the oil removal filter through an air passage, and the oil removal filter is used for removing oil from compressed air carrying oil and water.
The output end of the oil removal filter is connected with the input end of the athermal regenerated adsorption dryer through an air passage, the athermal regenerated adsorption dryer is an advanced device for drying compressed air through alumina or molecular sieves filled with high water absorbability by utilizing a pressure swing adsorption principle.
The output end of the athermal regeneration adsorption dryer is connected with the input end of the dust filter through an air passage, the dust filter is used for further dedusting, and the dust filter has various designs, such as an XRF dust filter.
The dust filter output end is connected with the degerming filter input end through an air passage, and the degerming filter is used for degerming.
The output end of the sterilizing filter is connected with the input end of the second air storage tank through an air passage, and the air is stored by the second air storage tank and is filtered compressed air, and the filtered compressed air is also called pure compressed air.
Specifically, the output end of the compressed air treatment system is connected with the input end of the oxygen generation system through an air passage, and the oxygen generation system is used for producing oxygen from the filtered compressed air and storing the oxygen as low-pressure oxygen;
the oxygen generating system comprises a PSA oxygenerator and an oxygen storage tank;
The filtered compressed air is input into the input end of the PSA oxygenerator through an air passage, and the PSA oxygenerator is used for preparing oxygen with higher purity (93% +/-3%) through pressure swing adsorption. The output end of the PSA oxygenerator is connected with the input end of the oxygen storage tank through an air passage; the oxygen storage tank stores low-pressure oxygen.
The filtered compressed air is subjected to pressure swing adsorption through a PSA oxygenerator, and oxygen in the compressed air is separated and purified.
Specifically, the second output end of the transmission system is connected with the power input end of the oxygen pressurization system, the output end of the oxygen generation system is connected with the gas input end of the oxygen pressurization system through an air passage, and the oxygen pressurization system is used for compressing low-pressure oxygen into high-pressure oxygen and storing the high-pressure oxygen;
The transmission system comprises a transfer case, a clutch system and a speed reducer; the clutch system comprises a clutch, the second output end of the transfer case is connected with the input end of the clutch, the output end of the clutch is provided with a belt pulley, the belt pulley is connected with the input end of the speed reducer through a belt, and the output end of the speed reducer is connected with the power input end of the oxygen pressurization system through a belt. The speed reducer realizes the speed reducing effect through gear transmission, and preferably, the transmission ratio is 2:1.
Preferably, the transfer case second output end is provided with a gear, the clutch input end is provided with a gear in a matched mode, and the transfer case second output end is connected with the clutch input end through the gear.
The oxygen pressurization system comprises an oxygen compressor and a compressed oxygen storage tank;
in the present application, the oxygen compressor can use a piston oxygen compressor and a diaphragm compressor. The piston oxygen compressor accords with the standard JB/T12950-2016, and the diaphragm compressor accords with the standard JB/T6905-93, and is used for pressurizing and conveying oxygen.
The low-pressure oxygen is input into the input end of the oxygen compressor through an air passage, and the output end of the oxygen compressor is connected with the input end of the compressed oxygen storage tank through the air passage. The low-pressure oxygen is pressurized to 15MPa by a piston oxygen compressor, and the compressed oxygen storage tank is filled and stored.
The second output end of the transfer case drives a speed reducer through a clutch, the speed reducer drives the power input end of the oxygen compressor,
Finally, the piston reciprocates in the cylinder of the piston oxygen compressor to finish the processes of suction, compression, discharge and the like;
Or (b)
Finally, the diaphragm reciprocates in the cylinder of the diaphragm compressor, so that the processes of compressing and delivering gas and the like are realized.
The application converts the mechanical energy of the diesel engine into kinetic energy to drive the oxygen compressor to work, and generates high-pressure oxygen for other equipment.
The present application uses wet clutches such as the CN215720355U, CN202573091U related art. Wet clutches are clutches that are cooled with oil. The cooling oil plays roles of cooling and lubrication protection on the friction plate, so that the power transmission is smooth and soft, and the cooling oil has the advantages of long service life and general failure prevention. Is widely used in automatic transmissions, such as manual and automatic integrated transmissions, which are commonly used at present. The clutch is combined by pressing a plurality of steel sheets and friction sheets (driving sheets and driven sheets) under the action of an oil cylinder or an air cylinder, and the steel sheets and the friction sheets are separated under the action of spring force after oil return or air return. The clutch of the application is provided with clutch air holes on the outer shell thereof. The clutch system also includes a clutch air reservoir for controlling the clutch. The output end of the clutch air storage tank is connected with the clutch air hole through an air passage. And a clutch electromagnetic valve is also arranged on the air passage between the clutch air storage tank and the clutch air hole.
The output end of the compressed air treatment system, namely the output end of the second air storage tank, is also connected with the input end of the clutch air storage tank in a one-way through an air passage. The compressed air handling system also delivers filtered compressed air to the clutch air reservoir.
In the present application, the oxygen compressor is not operated in synchronization with the air compressor, and the clutch functions to control the operation of the oxygen compressor. When the oxygenerator works and produces oxygen, the electromagnetic valve of the clutch is controlled by the controller to be conducted, and compressed air in the air storage tank of the clutch enters the air hole of the clutch from the air passage, so that the clutch is combined. After the clutch is combined, the driving force of the transfer case is transmitted to the output end of the clutch, so that the speed reducer is driven by a belt, and then the oxygen compressor works by belt driving. When the oxygen compressor is not needed to work, the electromagnetic valve of the clutch is controlled by the controller to be closed, compressed air does not exist in the air hole of the clutch, and the clutch is separated under the action of spring force. The driving force of the transfer case cannot be transmitted to the speed reducer, and the oxygen compressor stops working.
The diesel powered PSA oxygen plant also includes other components, such as an external lighting component, for external lighting.
The application uses the following method to prepare oxygen:
1) The diesel engine drives an air compressor system to extract air from the external environment through a transmission system for filtering and compressing to obtain compressed air, and the compressed air is input into a compressed air treatment system;
2) The compressed air treatment system receives the compressed air, filters the compressed air and stores the filtered compressed air;
3) The oxygen generation system carries out nitrogen adsorption on the filtered compressed air to obtain low-pressure oxygen and stores the low-pressure oxygen;
4) The diesel engine drives the oxygen pressurizing system to compress low-pressure oxygen through the transmission system, compresses the low-pressure oxygen into high-pressure oxygen and stores or fills the high-pressure oxygen; under the action of the clutch, the oxygen boosting system does not need to operate synchronously with other systems.
According to the diesel power-driven PSA oxygen generating equipment designed by the invention, the diesel power is adopted for air compression to directly drive the air compressor head, so that a generator in a diesel generator set and a motor in an air compressor which are required by the existing PSA oxygen generating technology in field operation are omitted, intermediate links are reduced, the energy utilization rate is improved, the failure rate is reduced, and meanwhile, the air compression module is smaller in volume and lighter in weight; the diesel power is adopted for oxygen compression, and the engine head of the oxygen compressor is directly driven in a belt transmission mode through the transfer case and the clutch, so that a motor in an oxygen booster required by the existing PSA oxygen production technology in field operation is omitted, intermediate links are reduced, the energy utilization rate is improved, the failure rate is reduced, and meanwhile, the volume and the weight of an oxygen booster module are smaller; the clutch is used for solving the problem that the oxygen compressor and the air compressor do not run synchronously; simultaneously, the air pressure, the oxygen production and the oxygen pressure are directly assembled into a whole to form a PSA oxygen production complete machine with the air pressure and the oxygen pressure functions, so that the PSA oxygen production equipment is integrated, the volume is smaller, the weight is lighter, the oxygen production guarantee capability can be effectively improved on a movable bearing platform such as a container, a shelter, a trailer carriage and the like with limited space, and the self-guarantee capability is stronger.
The foregoing is merely exemplary of the present application and is not intended to limit the present application. Various modifications and variations of the present application will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the application are to be included in the scope of the claims of the present application.

Claims (10)

1. A diesel powered PSA oxygen plant, characterized in that the diesel powered PSA oxygen plant comprises:
the system comprises a diesel engine, a transmission system, an air compressor system, a compressed air treatment system, an oxygen generation system, an oxygen supercharging system and a diesel engine self-generating system;
The diesel engine is used as a power source to provide power;
The output shaft of the diesel engine is connected with the input end of a transmission system, and the transmission system is used for distributing the power of the diesel engine and transmitting the power;
the first output end of the transmission system is connected with the power input end of an air compressor system, and the air compressor system is used for producing compressed air; the air compressor system compresses air without using electric energy;
the output end of the air compressor system is connected with the input end of the compressed air treatment system through an air passage, and the compressed air treatment system is used for filtering compressed air and storing the filtered compressed air as filtered compressed air;
The compressed air treatment system uses electrical energy;
The output end of the compressed air treatment system is connected with the input end of the oxygen generation system through an air passage, and the oxygen generation system is used for producing oxygen by using the filtered compressed air and storing the oxygen as low-pressure oxygen;
the oxygen generation system uses electric energy;
the second output end of the transmission system is connected with the power input end of the oxygen pressurization system, the output end of the oxygen generation system is connected with the gas input end of the oxygen pressurization system through an air passage, the oxygen pressurization system is used for compressing low-pressure oxygen into high-pressure oxygen and storing the high-pressure oxygen, and the oxygen pressurization system compresses the oxygen without using electric energy;
The diesel engine is used for providing power from a power generation system.
2. A diesel powered PSA oxygenerator apparatus as claimed in claim 1, wherein,
The diesel power driven PSA oxygen generating equipment further comprises a cooling system, and the cooling system is used for cooling the diesel power driven PSA oxygen generating equipment.
3. A diesel powered PSA oxygenerator apparatus as claimed in claim 2, wherein,
The transmission system comprises a transfer case, a clutch system and a speed reducer; the clutch system includes a clutch;
An output shaft of the diesel engine is connected with an input end of the transfer case;
The transfer case first output end is connected with the power input end of the air compressor system through a coupler;
The transfer case second output end is connected with the clutch input end, the clutch output end is connected with the speed reducer input end through a belt, and the speed reducer output end is connected with the oxygen pressurization system power input end through a belt.
4. A diesel-powered PSA plant according to claim 3, characterized in that,
The air compressor system comprises an air filter, a screw air compressor, an oil-gas separator and an air cooler;
the first output end of the transfer case is connected with the power input end of the screw air compressor through a coupler;
The air filter is provided with an air inlet, the output end of the air filter is connected with the gas input end of the screw air compressor through an air passage, the output end of the screw air compressor is connected with the input end of the oil-gas barrel through the air passage, the output end of the oil-gas barrel is connected with the input end of the oil-gas separator, and the gas output end of the oil-gas separator is cooled by the air cooler and outputs cooled compressed air.
5. A diesel-powered PSA plant according to claim 4, characterized in that,
The compressed air treatment system comprises a water removal filter, a first air storage tank, an oil removal filter, a athermal regeneration adsorption dryer, a dust filter, a sterilization filter and a second air storage tank;
compressed air after the cooling is input through the air flue the dewatering filter input, the dewatering filter output passes through the air flue and connects first gas holder input, first gas holder output passes through the air flue and connects deoiling filter input, deoiling filter output passes through the air flue and connects athermal regeneration adsorption dryer input, athermal regeneration adsorption dryer output passes through the air flue and connects dust filter input, dust filter output passes through the air flue and connects the degerming filter input, degerming filter output passes through the air flue and connects second gas holder input, and the second gas holder stores for the compressed air after the filtration.
6. A diesel-powered PSA plant according to claim 5, characterized in that,
The oxygen generating system comprises a PSA oxygenerator and an oxygen storage tank;
The filtered compressed air is input into the input end of the PSA oxygenerator through an air passage, and the output end of the PSA oxygenerator is connected with the input end of the oxygen storage tank through the air passage; the oxygen storage tank stores low-pressure oxygen.
7. A diesel-powered PSA plant according to claim 6, characterized in that,
The oxygen pressurization system comprises an oxygen compressor and a compressed oxygen storage tank;
the low-pressure oxygen is input into the input end of the oxygen compressor through an air passage, and the output end of the oxygen compressor is connected with the input end of the compressed oxygen storage tank through the air passage;
The second output end of the transfer case is connected with the input end of the clutch, the output end of the clutch is connected with the input end of the speed reducer through a belt, and the output end of the speed reducer is connected with the power input end of the oxygen compressor through a belt;
The clutch shell is provided with a clutch air hole;
The clutch system further comprises a clutch air storage tank for controlling the clutch;
The output end of the compressed air treatment system is connected with the input end of the clutch air storage tank in a one-way through an air passage;
The output end of the clutch air storage tank is connected with a clutch air hole through an air passage;
And a clutch electromagnetic valve is also arranged on the air passage between the clutch air storage tank and the clutch air hole.
8. A diesel powered PSA oxygenerator apparatus as in claim 7 wherein,
The diesel engine self-power generation system is a diesel engine self-contained direct current generator.
9. A diesel powered PSA plant according to claim 8, wherein,
The diesel engine self-power generation system also comprises a generator;
The third output end of the transmission system is connected with the input end of the generator.
10. A diesel powered PSA oxygen generation process, the diesel powered PSA oxygen generation process comprising:
1) The diesel engine drives an air compressor system to extract air from the external environment through a transmission system for filtering and compressing to obtain compressed air, and the compressed air is input into a compressed air treatment system;
2) The compressed air treatment system receives the compressed air, filters the compressed air and stores the filtered compressed air;
3) The oxygen generation system carries out nitrogen adsorption on the filtered compressed air to obtain low-pressure oxygen and stores the low-pressure oxygen;
4) The diesel engine drives the oxygen pressurizing system to compress low-pressure oxygen through the transmission system, compresses the low-pressure oxygen into high-pressure oxygen and stores or fills the high-pressure oxygen;
the oxygen generating system comprises a PSA oxygenerator and an oxygen storage tank;
The filtered compressed air is input into the input end of the PSA oxygenerator through an air passage, and the output end of the PSA oxygenerator is connected with the input end of the oxygen storage tank through the air passage; the oxygen storage tank stores low-pressure oxygen.
CN202210358222.5A 2022-04-06 2022-04-06 Diesel power driven PSA oxygen production equipment and oxygen production method Active CN114738113B (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1538629A (en) * 1977-11-25 1979-01-24 Powick E Automatic wind powered energy storage plant with a stable output
US5362207A (en) * 1993-06-09 1994-11-08 Ingersoll-Rand Company Portable diesel-driven centrifugal air compressor
CN210660355U (en) * 2018-05-24 2020-06-02 胡绍福 Energy-saving and emission-reducing device for internal combustion engine by using double-gas-source PSA oxygen production
CN112253311A (en) * 2020-11-11 2021-01-22 上海韦航装备科技有限公司 Energy supply system under field operations condition
CN216894629U (en) * 2022-04-06 2022-07-05 军事科学院系统工程研究院卫勤保障技术研究所 Diesel power driven PSA oxygen production equipment

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1538629A (en) * 1977-11-25 1979-01-24 Powick E Automatic wind powered energy storage plant with a stable output
US5362207A (en) * 1993-06-09 1994-11-08 Ingersoll-Rand Company Portable diesel-driven centrifugal air compressor
CN210660355U (en) * 2018-05-24 2020-06-02 胡绍福 Energy-saving and emission-reducing device for internal combustion engine by using double-gas-source PSA oxygen production
CN112253311A (en) * 2020-11-11 2021-01-22 上海韦航装备科技有限公司 Energy supply system under field operations condition
CN216894629U (en) * 2022-04-06 2022-07-05 军事科学院系统工程研究院卫勤保障技术研究所 Diesel power driven PSA oxygen production equipment

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